42022144221 has 4 divisors (see below), whose sum is σ = 56029525632. Its totient is φ = 28014762812.

The previous prime is 42022144217. The next prime is 42022144223. The reversal of 42022144221 is 12244122024.

It is a happy number.

42022144221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42022144221 - 2² = 42022144217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42022144191 and 42022144200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42022144223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7003690701 + ... + 7003690706.

It is an arithmetic number, because the mean of its divisors is an integer number (14007381408).

Almost surely, 2^42022144221 is an apocalyptic number.

It is an amenable number.

42022144221 is a deficient number, since it is larger than the sum of its proper divisors (14007381411).

42022144221 is a wasteful number, since it uses less digits than its factorization.

42022144221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14007381410.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 42022144221 its reverse (12244122024), we get a palindrome (54266266245).

The spelling of 42022144221 in words is "forty-two billion, twenty-two million, one hundred forty-four thousand, two hundred twenty-one".